Syclone dies while driving

[Vaders Sy]

Not sure what the Sy's problem is but, the truck just died while driving down the road. At first, it wouldn't crank, it would just click when you turned the key. After having sat for a day it tries to crank but nothing else. Not sure what could cause the Sy to die while driving. I had only driven about 7 miles from the gas station when this happened. Fuel tank of gas and it seemed fine until it died.

Where do I begin to solve this problem?

 

[Ian Turgeon]

Re: Syclone dies while driving

check those ecm fuses

 

[Vaders Sy]

Re: Syclone dies while driving

ECM fuses are good to go. Checked to see if there was a spark from the plug wires and there is a spark. Next step, I'll check fuel pressure then ???

 

[SY2455]

Re: Syclone dies while driving

If you have a spare ECM, you may want to try it. You are Describing what my Syclone was started doing just before my ECM went bad about 2 years ago. I was able to get home before it went belly up. Do you have any codes?

 

[TYTILIDIE]

Re: Syclone dies while driving

You can also check your fuel filter

Mike

 

[V]

Re: Syclone dies while driving

I've experienced a similar problem, but not in a SyTy. Turned out to be a bad coil. Cold, it worked perfectly. Hot, it was out to lunch. Heat = resistance = stranded. Sounds like you've narrowed it down to fuel.

 

[Vaders Sy]

Re: Syclone dies while driving

When the ignition is on, I believe it says check gauges. I thought that was typical. Not sure though. I do not have a spare ECM. I have never heard of ECM giving out. Hopefully not mine's problem. Like I said, I'll check the fuel pressure later today and go from there. Starting to think something serious is going on here.

 

[93ty475]

Re: Syclone dies while driving

aren't you running a modded ecm? kinda makes it tougher to swap with a known good one...i have a spare modded one if you want to try it...

 

[syclone1100]

Re: Syclone dies while driving

you might want to check the ignition wires starting from the steering colum on up mine did the same thing after i had the steering column fixed tured out to be a loose conection.

 

[Vaders Sy]

Re: Syclone dies while driving

Yes I have a modified ECM. I'll check the ignition wires in the steering column. Drag racing starts in less than 3 weeks and my Sy won't start I need to figure this out quick.

 

[supersports10]

Re: Syclone dies while driving

id say try an ignition module, i know you said you have spark, but maybe its there, but is too sporatic to start.

driving 7 miles, then giving out is tell tale of a fautly ignition module.

SS:tup:

 

[SY2932]

Re: Syclone dies while driving

Yes I have a modified ECM.

This may not be of any help to you but here it is anyways:

HTH's

 

[tbauer03]

Re: Syclone dies while driving

my truck won't start when cold but if i jump the fuel pump it will start immediatly something i need to figure out but try jumping your fuel pump letting it run and then see if it starts to see if you are experiencing something similar to me.

 

[Vaders Sy]

Re: Syclone dies while driving

Fuel pump runs when I turn the key in the ignition. I'll get that manual and go from there. BTW, fuel pressure was good.

 

[Crimson93Ty]

Re: Syclone dies while driving

Make sure you Battery cable are connected and not corroded.
The "clicking" sounds like either your battery cables are bad or you have the syty starter click syndrome and maybe need your purple wire replaced or use a permanent magnet starter. Do a "starter click" search.
My Ty would just sputter sometimes and then die. Ended up being a fuel pressure regulator going bad. At idle it read fine but when driving, the pressure would go REALLY high. Finally no fuel would go through it at all. Had to replace it.
A few things happen to get it started.
Oil pressure switch must see like 5 psi oil pressure before it will allow the ignition to fire. The fuel pump relay on the firewall next to the air conditioner's relay on the driver's side will then enable and turn the fuel pump on. Check gauges light is supposed to come on. That's normal. Whenever the truck dies, that little pic lights up. At least mine does. :2cents:
Seems like the ignition module works at like 450 RPM and then the ecm will take over above that. Can't remember for certain but the module is supposed to handle the really low rpm stuff.
Good luck.

 

[QUICK STORM]

Re: Syclone dies while driving

this sounds all to fimiliar to me. i had the same problem. whats you oil pressure?
mine showed 80psi basically pegged, well this turned out to be a bad oil pressure switch which is linked to the fuel pump. maybe this might be another thing to check. good luck:tup:

 

[Vaders Sy]

Re: Syclone dies while driving

Sounds like I have lots to check. Oil pressure from my memory seemed fine @ 20 lbs.

 

[Vaders Sy]

Re: Syclone dies while driving

Used a scan tool to pull the codes from the check gauges and check engine lights. Scan tool never communicated with the ECM. In the shop manual it says it could be due to a ECM problem. Did my ECM go bad?

 

[SY2455]

Re: Syclone dies while driving

If you have a spare ECM, you may want to try it. You are Describing what my Syclone was started doing just before my ECM went bad about 2 years ago. I was able to get home before it went belly up. Do you have any codes?

When I found out I had a bad ECM, I was able to get one for $85.00 at the local auto parts store. Did you save the mods you made to your ECM? You might try the old fashion way to get codes thru the check engine light.

 

[Vaders Sy]

Re: Syclone dies while driving

That was what I was going to do next. Want to make sure the ECM is bad before I order one.